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Detection of object contact during grasp using nail-mounted strain sensors

Publication ,  Journal Article
Grill, WM; Van Doren, CL
Published in: Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
December 1, 1997

A strain gage glued to the thumbnail was evaluated as a sensor of contact between the thumb and a grasped object. Subjects grasped, lifted, and released a set of standard objects, and the output of the strain gage was amplified in a bridge configuration. The strain signal was high pass filtered, and an amplitude threshold was used to detect contact. Across 3 subjects and 6 objects, contact was detected correctly in 85% of trials. A large number of false positives were also detected, primarily due to object release. This approach has the advantage that it does not interfere with grasp, and these results demonstrate that a nail mounted strain gage can be used to detect object grasp.

Duke Scholars

Published In

Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings

ISSN

0589-1019

Publication Date

December 1, 1997

Volume

5

Start / End Page

1952 / 1953
 

Citation

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Grill, W. M., & Van Doren, C. L. (1997). Detection of object contact during grasp using nail-mounted strain sensors. Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings, 5, 1952–1953.
Grill, W. M., and C. L. Van Doren. “Detection of object contact during grasp using nail-mounted strain sensors.” Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings 5 (December 1, 1997): 1952–53.
Grill WM, Van Doren CL. Detection of object contact during grasp using nail-mounted strain sensors. Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings. 1997 Dec 1;5:1952–3.
Grill, W. M., and C. L. Van Doren. “Detection of object contact during grasp using nail-mounted strain sensors.” Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings, vol. 5, Dec. 1997, pp. 1952–53.
Grill WM, Van Doren CL. Detection of object contact during grasp using nail-mounted strain sensors. Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings. 1997 Dec 1;5:1952–1953.

Published In

Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings

ISSN

0589-1019

Publication Date

December 1, 1997

Volume

5

Start / End Page

1952 / 1953